Troubleshooting Build Errors

Contents

1. sed: no input files

2. Dynamic linking / shared libraries

---

sed: no input files

Error message:

...
Setting up cross-python
sed: no input files

Solution:

An error message like the one above for packages using cross-python usually means python is missing from the host-dependencies.

Target does not support dynamic linking

Error message:

CMake Warning (dev) at CMakeLists.txt:XXX (add_library):
  ADD_LIBRARY called with SHARED option but the target platform does not
  support dynamic linking.  Building a STATIC library instead.  This may lead
  to problems.

Solution:

This solution is obtained from emscripten-core/emscripten#15276.

Create an overwriteProp.cmake file containing the following:

set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
set(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-s SIDE_MODULE=1")
set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-s SIDE_MODULE=1")
set(CMAKE_STRIP FALSE)

Add the following option to cmake:

-DCMAKE_PROJECT_INCLUDE=$RECIPE_DIR/overwriteProp.cmake